EP1497037B1 - Pompe de distribution de produit fluide - Google Patents
Pompe de distribution de produit fluide Download PDFInfo
- Publication number
- EP1497037B1 EP1497037B1 EP03740589A EP03740589A EP1497037B1 EP 1497037 B1 EP1497037 B1 EP 1497037B1 EP 03740589 A EP03740589 A EP 03740589A EP 03740589 A EP03740589 A EP 03740589A EP 1497037 B1 EP1497037 B1 EP 1497037B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- outlet valve
- inlet valve
- valve element
- pump body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
- B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
- B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
Definitions
- the present invention relates to a product dispensing pump manually operated fluid, as well as a product dispensing device fluid comprising such a pump.
- a fluid dispensing pump generally comprises a pump body in which slides a piston between a rest position and a dispensing position.
- the pump body can contain a pump chamber generally defined between an inlet valve and an outlet valve.
- sealing at the outlet valve is essential during actuation to avoid any leakage before the end of the actuation, and, similarly, sealing at the inlet flap must also be optimal in order to avoid any reflux of the product contained in the pump chamber towards the tank at the time of actuation.
- Another problem that may arise relates to the priming, that is to say the evacuation of the air contained in the chamber before the first pump operation.
- the air is evacuated through the outlet valve towards the orifice of distribution.
- This solution is not always suitable when the device has a shutter at the dispensing orifice, and in particular when such a shutter does not allow the evacuation of air during priming.
- Another solution is to fit a hole in the pump body and to evacuate the air through this hole. This solution implies, however, that after the priming, it is necessary to provide a means of closing this hole which can make the structure of the pump relatively complex.
- the present invention aims to provide a dispensing pump of fluid product that does not reproduce the aforementioned disadvantages.
- the object of the present invention is therefore to provide a fluid dispensing pump which ensures a perfect seal at the outlet valve and the inlet valve during actuation of the pump. eliminating any risk of leakage or reflux of the product contained inside the pump chamber during actuation, and thus ensuring the accuracy and reproducibility of the assay.
- Another object of the present invention is to provide a pump for fluid dispensing which ensures in a simple way easy priming of this pump, even when the device incorporating the pump comprises a shutter.
- the present invention also aims to provide such a pump of fluid dispensing that is simple and inexpensive to manufacture and to assemble.
- the subject of the present invention is therefore a pump for dispensing fluid product with manual operation, as described in claim 1.
- Advantageous embodiments are described in the claims dependent.
- the present invention also relates to a dispensing device fluid product comprising a pump as defined above.
- the pump comprises a pump body 10 in which slides a piston 50 between a position of rest (shown in FIGS. 1 and 4) and a dispensing position (shown in Figures 3 and 6).
- the piston 50 is connected, preferably integrally, with an actuating rod 60 on which the user exerts an axial force, for example by means of a pusher or a head of distribution (not shown).
- the actuating rod 60 can be hollow and generally includes an expulsion channel 65 allowing the expulsion of the product.
- the pump body 10 contains a pump chamber 20 defined between an inlet valve 30 and an outlet valve 40.
- the inlet valve 30 comprises a inlet valve member 31 which cooperates with the pump body 10 or a integral element thereof to define the opening and closing positions of said inlet valve 30.
- the outlet valve 40 has a outlet valve member 41 which cooperates with the actuating rod 60 (or a integral part of it) to define the positions of opening and closing said outlet valve 40.
- the inlet valve element 31 and the element of the outlet valve 41 are both movable inside the pump body 10.
- the pump of the invention can be mounted on a reservoir (not shown) by means of a fixing ring 1 which can be any, and in particular screwable, crimpable or snap-on.
- a seal 5 is interposed between the upper edge of the tank (not shown) and the ring of 1.
- a dispensing head or pusher is then assembled on the pump to operate the latter, and thus form a dispensing device of fluid product with manual operation.
- the outlet valve 40 is biased towards its position of closing by the pressure of the product contained in the pump chamber 20. This guarantees that there is no risk of leakage during the actuation of the pump, since as soon as the user actuates the pump, it creates a pressure inside of the pump chamber 20 and this pressure will solicit the outlet valve 40 towards its closed position and thus ensure optimum sealing at this level.
- the inlet valve member 31 co-operates with a part of the pump body 10 which is made in such a way that the pressure of the product contained inside the pump chamber 20 also improves the sealing of said inlet valve 30.
- the inlet valve member 31 cooperates with the valve member of output 41 to move the latter mechanically to the open position of the outlet valve 40. This mechanical opening of the outlet valve at the end of actuation stroke of the pump ensures a distribution of the entire dose each time the pump is actuated.
- the inlet valve element 31 comprises a sleeve axial hollow lower 32 and an upper hollow axial sleeve 34.
- the sleeve lower axial 32 slides in a sealed manner around a hollow axial tube 12 integral with the pump body 10.
- this axial tube 12 can be made integrally with the pump body 10 and be concentric inside of it, at its lower edge.
- the seal is made at the lower end 33 of said sleeve lower 32, and this seal is improved during the actuation of the pump by the pressure of the product contained in the pump chamber 20, the product extending around said lower sleeve 32 of the valve member 31.
- the lower end 33 of said lower sleeve 32 is spaced from the upper end 13 of said axial tube 12, which defines the position opening of the inlet valve 30, by opening a passage for the product towards the pump chamber 20.
- said axial tube 12 of the pump body 10 can have one or more radial projection (s) 14, preferably made in its lower part, and which cooperates (s) with the lower end 33 of said lower sleeve 32 of the inlet valve member 31 during the first actuation of the pump.
- This makes it possible to prime the pump safely and simple by evacuating the air contained in the pump chamber 20 through the dip tube towards the inside of the tank (not shown).
- Figures 2 and 4 represent the priming position, in which the lower end 33 of the lower sleeve 32 cooperates with said radial projections 14 of the axial tube 12. This opens an expulsion passage for the air contained in the pump chamber 20.
- the chamber pump 20 fills with fluid from the reservoir (not shown).
- the inlet valve member 31 will never again reach the position in which its lower end 33 can cooperate with said radial projections 14 of the axial tube 12. Indeed, the outlet valve 40 of the pump will always be mechanically opened by said inlet valve element 31 before said lower edge 33 of said inlet valve member 31 does not reach said radial projections 14.
- the presence of these radial projections 14 thus allows the priming of the pump, but does not present any risk of leakage during the subsequent actuation of the pump, in particular at the level of the sealing of the inlet valve 30.
- the present invention thus provides a simple and reliable priming, and evacuation of air through the dip tube allows the pump of the present invention to be used with any type of shutter, including a shutter that does not allow the expulsion of air during priming.
- the upper hollow axial sleeve 34 of the inlet valve member 31 has an upper edge 35 which forms a radially inward shoulder.
- This upper edge 35 is slidably mounted, preferably in a sealed manner, around a portion of said outlet valve member 41, defined between two radial shoulders towards the lower and upper outside 45 and 46.
- the edge upper 35 of the upper sleeve 34 cooperates with said lower shoulder 45 of the outlet valve member 41 to mechanically open said check valve output 40 when the piston 50 reaches its dispensing position.
- the check valve exit is automatically returned to its closed position after the actuation of the pump by the product entering inside the chamber of pump 20 when the piston 50 returns from its dispensing position to its rest position.
- the embodiment of FIGS. 4 to 6 that the upper edge 35 of the upper sleeve 34 of the valve member input 31 cooperates with said upper shoulder 46 of the valve element of output 41 to mechanically close said outlet valve 40 after expulsion of the product contained in the pump chamber 20.
- this feature of mechanically closing the outlet valve 40 could all adapted in the first embodiment described with reference to the Figures 1 to 3.
- a spring 70 forming a return spring of the pump, is advantageously arranged between the pump body 10 and the valve element This spring 70 urges the inlet valve 30 towards its position. opening and the piston 50 to its rest position.
- the present invention thus provides a safe and reliable pump which avoids all risk of leakage during actuation, which allows safe and reliable priming during of the first actuation of the pump, and which especially is simple and inexpensive to manufacture and assemble because it has only a very small number of parts constituent. Indeed, to get this pump with all these advantages, the The present invention uses only six parts, namely the pump body 10, the inlet valve member 31, the outlet valve member 14, the spring of recall 70, the piston 50 and a ferrule 80 (which is the abutment element fitted in the upper edge of the pump body 10 and which defines the rest position piston 50).
Landscapes
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
éliminant tout risque de fuite ou de reflux du produit contenu à l'intérieur de la chambre de pompe pendant l'actionnement, et garantissant donc la précision et la reproductibilité du dosage.
- la figure 1 est une vue schématique en section transversale d'une pompe selon un premier mode de réalisation de la présente invention, en position de repos ;
- la figure 2 est une vue similaire à celle de la figure 1, en position d'amorçage ;
- la figure 3 est une figure similaire à celles des figures 1 et 2, en position de distribution ;
- la figure 4 est une vue schématique en section transversale d'un second mode de réalisation de la présente invention, en position de repos ;
- la figure 5 est une vue similaire à celle de la figure 4, en position d'amorçage ; et
- la figure 6 est une vue similaire à celles des figures 4 et 5, en position de distribution.
Claims (7)
- Pompe de distribution de produit fluide à actionnement manuel, comportant un corps de pompe (10) contenant une chambre de pompe (20), ladite chambre de pompe (20) étant définie entre un clapet d'entrée (30) et un clapet de sortie (40), un piston (50) coulissant dans ledit corps de pompe (10) entre une position de repos et une position de distribution, pour distribuer le produit contenu dans la chambre de pompe, ledit piston (50) étant relié, notamment de manière monobloc, à une tige d'actionnement (60) comportant un canal d'expulsion (65), ledit clapet d'entrée (30) comportant un élément de clapet d'entrée (31) déplaçable dans le corps de pompe (10) et coopérant avec ledit corps de pompe (10) ou un élément solidaire dudit corps de pompe pour définir les positions d'ouverture et de fermeture dudit clapet d'entrée (30), ledit élément de clapet d'entrée (31) comporte un manchon axial creux inférieur (32) qui, en position de fermeture dudit clapet d'entrée (30), coulisse de manière étanche autour d'un tube axial creux (12) solidaire du corps de pompe (10), l'extrémité inférieure (33) dudit manchon inférieur (32) étant espacée de l'extrémité supérieure (13) dudit tube axial (12) en position d'ouverture dudit clapet d'entrée (30), pour définir un passage de produit vers la chambre de pompe (20), ledit clapet de sortie (40) comportant un élément de clapet de sortie (41) déplaçable dans le corps de pompe (10) et coopérant avec ladite tige d'actionnement (60), ou un élément solidaire de ladite tige d'actionnement pour définir les positions d'ouverture et de fermeture dudit clapet de sortie (40), caractérisée en ce que, lors de l'actionnement, ledit clapet de sortie (40) est sollicité vers sa position de fermeture par la pression du produit contenu dans le chambre de pompe (20), ledit élément de clapet de sortie (41) étant déplacé vers la position d'ouverture du clapet de sortie (40) par ledit élément de clapet d'entrée (31), lorsque le piston (50) atteint sa position de distribution.
- Pompe selon la revendication 1, dans laquelle ledit tube axial (12) du corps de pompe (10) comporte une ou plusieurs projection(s) radiale(s) (14) coopérant avec l'extrémité inférieure (33) dudit manchon inférieur (32) de l'élément de clapet d'entrée (31) lors du premier actionnement, pour ouvrir un passage d'expulsion de l'air contenu dans la chambre de pompe (20), pour amorcer la pompe.
- Pompe selon l'une quelconque des revendications précédentes, dans laquelle ledit élément de clapet d'entrée (31) comporte un manchon axial creux supérieur (34) dont le bord supérieur (35) forme un épaulement radial vers l'intérieur et qui est monté coulissant autour dudit élément de clapet de sortie (41), entre deux épaulements radiaux vers l'extérieur inférieur et supérieur (45, 46) dudit élément de clapet de sortie (41).
- Pompe selon la revendication 3, dans laquelle ledit bord supérieur (35) du manchon supérieur (34) coopère avec ledit épaulement inférieur (45) de l'élément de clapet de sortie (41) pour ouvrir ledit clapet de sortie (40), lorsque le piston (50) atteint sa position de distribution.
- Pompe selon la revendication 3 ou 4, dans laquelle ledit bord supérieur (35) du manchon supérieur (34) coopère avec ledit épaulement supérieur (46) de l'élément de clapet de sortie (41) pour refermer ledit clapet de sortie (40), après expulsion du produit contenu dans la chambre de pompe (20).
- Pompe selon l'une quelconque des revendications précédentes, dans laquelle un ressort (70) est disposé entre le corps de pompe (10) et l'élément de clapet d'entrée (31), ledit ressort (70) sollicitant ledit clapet d'entrée (30) vers sa position d'ouverture et le piston (50) vers sa position de repos.
- Dispositif de distribution de produit fluide, caractérisé en ce qu'il comporte une pompe selon l'une quelconque des revendications précédentes.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0204814A FR2838787B1 (fr) | 2002-04-17 | 2002-04-17 | Pompe de distribution de produit fluide |
FR0204814 | 2002-04-17 | ||
PCT/FR2003/001144 WO2003086648A1 (fr) | 2002-04-17 | 2003-04-10 | Pompe de distribution de produit fluide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1497037A1 EP1497037A1 (fr) | 2005-01-19 |
EP1497037B1 true EP1497037B1 (fr) | 2005-10-26 |
Family
ID=28686139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03740589A Expired - Lifetime EP1497037B1 (fr) | 2002-04-17 | 2003-04-10 | Pompe de distribution de produit fluide |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1497037B1 (fr) |
JP (1) | JP4369760B2 (fr) |
CN (1) | CN1329126C (fr) |
AU (1) | AU2003262151A1 (fr) |
DE (1) | DE60302056T2 (fr) |
FR (1) | FR2838787B1 (fr) |
WO (1) | WO2003086648A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2862106B1 (fr) * | 2003-11-07 | 2007-08-24 | Valois Sas | Pompe de distribution de produit fluide. |
CN104074735B (zh) * | 2013-02-18 | 2016-08-24 | 中村英子 | 内燃机尾气净化的后处理系统的计量泵液体释放控制装置 |
PL3110560T3 (pl) * | 2014-02-26 | 2020-11-16 | Dispensing Technologies B.V. | Urządzenie do dozowania cieczy, mające zawór wylotowy działający pod ciśnieniem wstępnym |
FR3096090B1 (fr) * | 2019-05-14 | 2022-10-28 | Aptar France Sas | Pompe à précompression haute pression |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2665733A1 (fr) * | 1990-08-07 | 1992-02-14 | Valois | Perfectionnement d'une pompe-doseuse a precompression permettant d'en ameliorer le rendement par admission precoce dans la chambre de pompe. |
US5303854A (en) * | 1993-03-08 | 1994-04-19 | Spruhventile Gmbh | Pharmaceutical pump dispenser having hydraulically closed outlet port |
CN2423968Y (zh) * | 2000-04-13 | 2001-03-21 | 苏正原 | 液体喷雾器 |
-
2002
- 2002-04-17 FR FR0204814A patent/FR2838787B1/fr not_active Expired - Lifetime
-
2003
- 2003-04-10 AU AU2003262151A patent/AU2003262151A1/en not_active Abandoned
- 2003-04-10 CN CNB03811335XA patent/CN1329126C/zh not_active Expired - Fee Related
- 2003-04-10 DE DE60302056T patent/DE60302056T2/de not_active Expired - Lifetime
- 2003-04-10 WO PCT/FR2003/001144 patent/WO2003086648A1/fr active IP Right Grant
- 2003-04-10 JP JP2003583647A patent/JP4369760B2/ja not_active Expired - Fee Related
- 2003-04-10 EP EP03740589A patent/EP1497037B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP4369760B2 (ja) | 2009-11-25 |
CN1652880A (zh) | 2005-08-10 |
JP2005527353A (ja) | 2005-09-15 |
AU2003262151A1 (en) | 2003-10-27 |
WO2003086648A1 (fr) | 2003-10-23 |
CN1329126C (zh) | 2007-08-01 |
FR2838787A1 (fr) | 2003-10-24 |
DE60302056T2 (de) | 2006-07-20 |
FR2838787B1 (fr) | 2005-11-04 |
DE60302056D1 (de) | 2005-12-01 |
EP1497037A1 (fr) | 2005-01-19 |
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